Jetbrain's IDEs label it as "annotate". Though, I suspect that's intended as a generalization of the various VCS options they support. --- I do think it'd be

Jetbrain's IDEs label it as "annotate". Though, I suspect that's intended as a generalization of the various VCS options they support. --- I do think it'd be good to move away from the negative connotation associated with blame. I want to know who to ask about some code, not who to blame for it breaking.